Eye fluke infection status in Baltic cod, Gadus morhua, after three decades and their use as ecological indicators

Foojan Mehrdana; Moonika Haahr Marana; Jakob Skov; Qusay Zuhair Mohammad Bahlool; Diana Sindberg; Mai Mundeling; Bettina C. Overgaard; Per Walter Kania; Kurt Buchmann

doi:10.1515/ap-2015-0058

Eye fluke infection status in Baltic cod, Gadus morhua, after three decades and their use as ecological indicators

Foojan Mehrdana, Moonika Haahr Marana, Jakob Skov, Qusay Zuhair Mohammad Bahlool, Diana Sindberg, Mai Mundeling, Bettina C. Overgaard, Per Walter Kania, Kurt Buchmann

2 Citations (Scopus)

Abstract

Eye flukes of the genus Diplostomum were recorded with a prevalence of 7.4% and a mean intensity of 11.9 (range 1-75) parasites per fish in eye lenses of a total of 188 Atlantic cod, Gadus morhua, sampled in the Southeastern Baltic Sea from March 2013 to February 2014. A slight decrease of infection level, among the fish with body length ranging from 30 to 89.5 cm, was found when data were compared to a corresponding survey in the 1980s. Due to imprecise species identification of eye flukes based on morphometric analyses we present, as a baseline for further studies, rDNA sequences from a subsample of 19 eye flukes based on sequencing of a part of 18S, ITS-1, 5.8S, ITS-2 and part of 28S. We discuss the use of eye fluke recordings in Baltic cod as an environmental indicator due to the dependence of the parasités life cycle on biotic (occurrence of snail and bird hosts) and abiotic (temperature and salinity) parameters.

Original language	English
Journal	Acta Parasitologica
Volume	60
Issue number	3
Pages (from-to)	423-429
Number of pages	7
ISSN	1230-2821
DOIs	https://doi.org/10.1515/ap-2015-0058
Publication status	Published - 1 Sept 2015

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title = "Eye fluke infection status in Baltic cod, Gadus morhua, after three decades and their use as ecological indicators",

abstract = "Eye flukes of the genus Diplostomum were recorded with a prevalence of 7.4% and a mean intensity of 11.9 (range 1-75) parasites per fish in eye lenses of a total of 188 Atlantic cod, Gadus morhua, sampled in the Southeastern Baltic Sea from March 2013 to February 2014. A slight decrease of infection level, among the fish with body length ranging from 30 to 89.5 cm, was found when data were compared to a corresponding survey in the 1980s. Due to imprecise species identification of eye flukes based on morphometric analyses we present, as a baseline for further studies, rDNA sequences from a subsample of 19 eye flukes based on sequencing of a part of 18S, ITS-1, 5.8S, ITS-2 and part of 28S. We discuss the use of eye fluke recordings in Baltic cod as an environmental indicator due to the dependence of the parasit{\'e}s life cycle on biotic (occurrence of snail and bird hosts) and abiotic (temperature and salinity) parameters.",

author = "Foojan Mehrdana and Marana, {Moonika Haahr} and Jakob Skov and Bahlool, {Qusay Zuhair Mohammad} and Diana Sindberg and Mai Mundeling and Overgaard, {Bettina C.} and Kania, {Per Walter} and Kurt Buchmann",

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doi = "10.1515/ap-2015-0058",

language = "English",

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T1 - Eye fluke infection status in Baltic cod, Gadus morhua, after three decades and their use as ecological indicators

AU - Mehrdana, Foojan

AU - Marana, Moonika Haahr

AU - Skov, Jakob

AU - Bahlool, Qusay Zuhair Mohammad

AU - Sindberg, Diana

AU - Mundeling, Mai

AU - Overgaard, Bettina C.

AU - Kania, Per Walter

AU - Buchmann, Kurt

PY - 2015/9/1

Y1 - 2015/9/1

N2 - Eye flukes of the genus Diplostomum were recorded with a prevalence of 7.4% and a mean intensity of 11.9 (range 1-75) parasites per fish in eye lenses of a total of 188 Atlantic cod, Gadus morhua, sampled in the Southeastern Baltic Sea from March 2013 to February 2014. A slight decrease of infection level, among the fish with body length ranging from 30 to 89.5 cm, was found when data were compared to a corresponding survey in the 1980s. Due to imprecise species identification of eye flukes based on morphometric analyses we present, as a baseline for further studies, rDNA sequences from a subsample of 19 eye flukes based on sequencing of a part of 18S, ITS-1, 5.8S, ITS-2 and part of 28S. We discuss the use of eye fluke recordings in Baltic cod as an environmental indicator due to the dependence of the parasités life cycle on biotic (occurrence of snail and bird hosts) and abiotic (temperature and salinity) parameters.

AB - Eye flukes of the genus Diplostomum were recorded with a prevalence of 7.4% and a mean intensity of 11.9 (range 1-75) parasites per fish in eye lenses of a total of 188 Atlantic cod, Gadus morhua, sampled in the Southeastern Baltic Sea from March 2013 to February 2014. A slight decrease of infection level, among the fish with body length ranging from 30 to 89.5 cm, was found when data were compared to a corresponding survey in the 1980s. Due to imprecise species identification of eye flukes based on morphometric analyses we present, as a baseline for further studies, rDNA sequences from a subsample of 19 eye flukes based on sequencing of a part of 18S, ITS-1, 5.8S, ITS-2 and part of 28S. We discuss the use of eye fluke recordings in Baltic cod as an environmental indicator due to the dependence of the parasités life cycle on biotic (occurrence of snail and bird hosts) and abiotic (temperature and salinity) parameters.

U2 - 10.1515/ap-2015-0058

DO - 10.1515/ap-2015-0058

M3 - Journal article

C2 - 26204178

SN - 1230-2821

VL - 60

SP - 423

EP - 429

JO - Acta Parasitologica

JF - Acta Parasitologica

IS - 3

ER -

Eye fluke infection status in Baltic cod, Gadus morhua, after three decades and their use as ecological indicators

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